Albeet t



(No Mode l.) I

A; T. HULL.

HOD ELEVATOR. ITO/286,009. Patented Oct. 2, 1883.

power, situated at the upper end of the chain.

2 5 looking at its open end.

0 two sides of the endless chain.

0 at f and located at the lower part of the building.

NiTEn TATES PATENT rinse.

ORK, N. Y, ASSIGNOR 'ro ED\VARD n. FISHER,

PLACE.

HO D- ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 286,009, dated October2, 1883. Application filed February 12, 1883. (No model.)

To all whom, it may concern..-

Be it known that I, ALBERT T. HULL, a citizen of the United States,residing at New York, in the county of New York and State of 5 New York,have invented certain new and useful Improvements in Hod-Elevators; and

I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as willenable others skilled in theart to 10 which it appcrtains to make and use'the same.

The invention relates to an improvement in hod-elevators; and itconsists inthe novel, construction and arrangement of the parts}hereinafter described, and particularly pointed 1 out in the claims.

Referring to the accompanying drawings, Figure l is a side view of theendless elevator-chain mounted upon its carrying-wheels, andillustrating the mechanism for applying Fig. 2 is an enlarged plan viewof a detached portion-of the endless chain supporting a hod. Fig. 8 isan edge view of the elements illustrated in Fig. 2. Fig. 4 is a view ofthe hod,

Fig. 5 is a detached perspective view of the yoke adapted to receive the110d and to suspend it on the endless carrying-chain. Fig. 6 is adetached perspecti ve view of one of the tie-rods connecting the Fig. 7is Ztllj end view of the frame supporting the mechani ism by which poweris applied to operate the endless chain, the gear-wheels in this View 1being indicated by dotted lines.

A B denote the two sides of the endless chain, and O the rods connectingthe same. i The endless chain passes over the wheels a b and under thewheels 0 d, the wheels 0 (I being mounted upon an axle, c, which isjournaled ing in which the apparatus is employed. The wheels a b aremounted between the sides of the frame D upon an aXle, E, the said framebeingsituated at the upper part of the build- Upon the outer end of theaxle E is secured the gear-wheel F, below and meshing with which is anintermediate gear-wheel, G, which is mounted upon an aXle, g, projectedfrom the plate 71 The plate It is preferably embedded in the side of theframe 1), as indicated in dotted lines in Fig. 1 and in full lines inFig. 7, and is employed merely to sustain the intermediate gear-wheel,G. Below the wheels a b the sides of the frame D are con nected by ashaft, 11, having upon either eX- tremity the crank I, and beingprovided with the pinion J, which meshes with the intermediategeanwheel, G. The shaft H isalso supplied with the ratchet-wheel i,which is engaged by the pawl j. The purpose of the pawlj and ratchet iis to prevent the shaft H from being turned in the wrong direction bythe weight of the lead 011 the chain when the attendants hand is removedfrom the crank.

It will appear plain that by turning the cranks I, or either of them,motion will be communicated from the pinion J, through the interme diategear-wheel, G, to the gear-wheel. F, and thence to the shaft E andwheels to b. The motion of the wheels a 1) causes the usual travel ofthe endless belt or chain over the wheels, carrying it toward the top ofthe building.

The endless chain consists of the open links on and closed links a, thelinks being connected at their meeting ends by bolts, rivets, or othersuitable means. The inner half of each open link in has formed upon itthe pocket i, the pocket on each alternate link opening upward, themouth of the pocket on the other links being turned downward. I do notconfine myself to this arrangement of the pockets t, nor to the formingof them on the open links, although I prefer so to use them.

The pockets t are of suitable size to snugly receive the projecting endsa of the hod-yoke 8 5 w, in the manner indicated in Figs. 2 and 3, andpermit their ready removal when desired. The yoke 10 is a malleable-ironframe, of dimensions which adapt it to saddle the sides of the bowl 0."of the hod, and has asocket formed 0 in its lower end to receive theupper end of the handle 3 as shown in dotted lines in Fig. 2. Theprojecting ends a of the yoke 10 form convenient means for suspendingthe hod on the chain, and the yoke at the same time serves to strengthenthe sides of the bowl as and affords a means of attachment for thehandle y. The bowl as of the hod is provided at its open end with thebrace or cross-bar z, which extends from one side of the hod to theother, and has its bent ends a secured by nails or otherwise. The bracee fulfills a twofold purpose: It strengthens the hod and effectuallyprevents the brick from falling therefrom when the apparatus is in use.

ployed for connecting the sides A B and as a.

rest for the handle of the hod. Any suitable number of rods 0 may beemployed, according to the length of the chain and other circumstances.

When theapparatus is in use, power is applied to set the chain inmotion, and the hods, after being filled, are inserted endwise betweenthe sides of same until the projecting ends a of the yoke w reach theupwardly-' turned pockets t, which will then sustain the hod until it isremoved from the chain at the upper part of the building by anattendant. While the chain is passing over the pulleys a b the pocketstwhich were employed for sustaining the full hods will turn down, andthe pockets t which were previously down will now have their mouthsturned upward, and in this position may be utilized for carrying theempty hods to the lower part of the building a on the reverse side ofthe chain.

It will be obvious that by the peculiar construction of the frame D avery durable and compact means for supporting the power mechanism isprovided, and that by the employment of the intermediate gear-wheel, G,I am enabled to leave the crank-shaft in a convenient position to behandled by the operator, and i at the same time have the wheels a bproperly elevated above the base upon which the frame D rests, to permitthe bowl of the hod to reach an elevation corresponding, about, withthat of a mans shoulder before it is necessary to remove it from thechain. The removal of i the hod is facilitated also by the manner inwhich it is siistained .on the chain, a very short movement beingsufficient to' relieve the extended portions of the yoke from thepockets 1. Unless the hod is removed from the pocket at the proper time,it will of course be carried to the top of the wheels a b and dump thebrick down through the building; hence it is quite essential,especially'where steam-power is employed to operate the endless chain,to adopt some means which will permit the detachment of the hods withcertainty and rapidity, and which at the same time will'properly sustainthe hods in their ascent. Other advantages are derived from theemployment of the particular form of chain shown and described, which donot require specific mention. One, however, is that the sides AB of thechain need only be separated the width of the hod, and will as aconsequence occupy but a narrow space in the building.

By arranging the power mechanism at the upper part of the building,advantages are gained of a very important character. Vhen thus arranged,the motive power can be arrested at any time to suit the purposes of theworkmen in the upper portions of the building, and in case the attendantfails to remove the hod of material at the proper time it will beapparent to the person operating the crank, and the movement can then bestopped, thereby avoiding the breakage of the apparatus and the dangerarising from falling brick which would otherwise ensue.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The means for communicating motion to the belt or chain pulleys of ahod-elevator, which consists of the gear-wheels F J and in termediatewheel, G, the wheel J being mounted on the axle to which power isapplied and the wheel F upon the axle carrying the said pulleys,substantially as and for the purpose set forth.

2. The frame D, formed of the sides connected by the shafts E H, incombination with the wheels a b, the gear-wheels F G J, and an endlesshod-carrying chain or belt, substantially as set forth.

3. The chain consisting of the sides A B. composed of open and closedlinks m n, and connected by the rods 0, having ends 0 c, as described.

4. The hod having across its open end the safety-brace z, substantiallyas set forth.

5. In combination with an endless hod-elevating belt or chain, the hodsupplied with the yoke w at about its vertical center, the yoke havingprojecting ends a, and a socket to receive the handle y, substantiallyas set forth. Y

6. The chain consisting of the open and closed links, constituting sidesA B, provided with pockets t, and connected by rods 0, in

combination with-the hods having at about their vertical .centerprojections a, adapted to enter the pockets, the arrangement of thechain being-such as to permit the insertion of the hod between the sidesthereof, substan tially as specified. I

i 7. The means for communicating motion to the belt or chain pulleys ofa hod-elevator at the upper part of the building, which consists of thecrankshaft, pawl and ratchet, gearwheels F J, intermediate gear-wheel,G, the wheel F being mounted on the shaft carrying said chain-pulleys,substantially as set forth. In testimony whereof I affix my signature inpresence of two witnesses.

ALBERT 'r. HULL.

ICO

